Pichon Family from Bolougne Sur Mere

I am searching for the Pichon Family that immigrated from Bolougne Sur Mere, Pas-De Calais France to England. Jacques Marie Posper Pichon Married Frances (born in England circa 1807)and had at least 3 children Louisa Fanny bd08/3/1839,Charles Hopper christened 28/1/1838, and Ellen bd 1849 all born in France.